2014. 1. IETS (Reno, Nevada, USA)
2012.12. "Transgenic animal and its application" (Jeju, South Korea)
2009. 1. IETS (San Diego, California, USA)
2008. 5. WCRB (Kona, Hawaii, USA)
2007. 1. IETS (Kyoto, Japan)
2005. 1. IETS (Copenhagen, Denmark)
2003. 1. IETS (Auckland, New Zealand)
2002. 8. "Frontier in animal biotechnology" (Nakhon Ratchasima, Thailand)
No photograph available2000. 1. IETS (Maastricht, Nederland)
No photograph available1997. 1. IETS (Nice, Maritime Alps, France)
No photograph available